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您的检索式：作者名="Mengjuan Hu"
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| 1 | Research on Dielectric Focusing Lens Antenna for HPM Atmospheric Breakdown Experiments显示文摘To distinguish the dielectric surface breakdown from the atmospheric breakdown, one method for atmospheric breakdown experiment by loading dielectric focusing lens is proposed. The focusing characteristics of dielectric focusing lens are investigated for the microwave frequency on the order of 1.3GHz to 9.3GHz, the lens focal length on the order of 0.3m to 0.9m and the dielectric constant on the order of 0.3 to 0.9. Simulations show that higher frequency, shorter focal length, and fitter dielectric constant result in better focus effect that the rising and falling edges of electric field strength change faster near the focus which is closer to the theoretical value. A dielectric focusing lens for the S-band is optimally designed with the polytetrafluoroethylene of 0.32 m thickness, 0.6m diameter,and 0.4m focal length. The focus indicator of dielectric lens is measured and the atmospheric breakdown experiment is carried out. The experimental values of atmospheric breakdown are consistent with the theoretical values. The electric field strength with the lens at the focus is 5–6times greater than that without focusing lens. The image of atmospheric breakdown by the dielectric lens focusing method experiment is clearer than that by the direct radiation method. | YU Daojie CHAI Mengjuan ZHOU Dongfang ZHOU Changlin WEI Jinjin HU Junjie CAI Beibing ZHAO Tongcheng | 2019 | Chinese Journal of Electronics2019，28，1： | 1 |
| 2 | Effect of sub-temperature quenching temperature on microstructure and property of 35Cr Mo steel显示文摘 | Anming Li Mengjuan Hu | 2012 | Advanced Materials Research2012，，： | 1 |
| 3 | In situ polypyrrole polymerization enhances the photocatalytic activity of nanofibrous TiO2/SiO2 membranes显示文摘In this study, nanofibrous polypyrrole-coated TiO_2/SiO_2(PPy@TS) membranes were fabricated by a combination of sol-gel process, electrospinning, calcination, and in situ polymerization. Samples from the electrospinning, calcination, and in situ polymerization steps were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction. Fourier transform infrared spectroscopy, and thermogravimetry. The in situ polymerization of PPy is aimed to enhance the overall photocatalytic capability of TiO_2 in the TiO_2/SiO_2 composite fibers. Results of the photocatalytic degradation tests demonstrated that the PPy@TS composites possess enhanced photocatalytic activity for the degradation of methyl orange. | Xiaoqiang Li Jidong Wang Zimu Hu Mengjuan Li Kenji Ogino | 2018 | Chinese Chemical Letters2018，29，1： | 1 |
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